大多数人的问题在于他们用希望、恐惧或愿望来思考,而不是用他们的头脑。
The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.
真正的创新来自于对未来的信仰。
煤炭使美国在世界范围内保持竞争力。